code: def get_string_series():
      return Series(["ab", "ac", "ba", "cc", "ad"])
  
file_path: cudf/python/cudf/cudf/tests/test_contains.py
imports: import datetime
  import numpy
  import pandas
  import pytest
  import cudf
  from cudf import Series
  from cudf.core.index import RangeIndex, as_index
  from cudf.testing._utils import DATETIME_TYPES, NUMERIC_TYPES, TIMEDELTA_TYPES, assert_eq
label_desc: Use image node_id 4 for calling a global function with example usage: get_string_series() and returns: Series